Hi, > Do you create a background thread per apache process? Or do you have a > single background thread that is used by all apache processes? Which > hook creates the background thread?
The background thread is created by ap_hook_child_init, thus every child process has one running background thread. > > It is possible that you create the thread once but you try to join it > several times. I don't know if this is sufficient to get the symptoms > that you see. Even when I do not join at all, but just attempt to connect to the database in the registered pool cleanup function for the child, I get the segfault. > > Try compiling both apache and apr with debug symbols and run it in a > debugger with -X (i.e. monoprocess). > Place a breakpoint on line 134 > and see how many times you reach it. Yes I'll try that soon. Thank you, Andrej
